<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>v-model指令</title>
</head>

<body>
    <div id="app">

        <input type="button" value="修改massge" @click="setM">
        <input type="text" v-model="messge" @keyup.enter="getM">
        <h2>{{messge}}</h2>


    </div>

    <!-- 开发环境版本，包含了有帮助的命令行警告 -->
    <script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>

    <script>
        var app = new Vue({
            el: "#app",
            data: {
                messge: "黑马程序员"
            },
            methods: {
                getM: function () {
                    alert(this.messge)
                },
                setM: function () {
                    this.messge = "酷丁鱼"
                }
            }
        })
    </script>
</body>

</html>